Method of manufacturing a contact lens

Details Method of manufacturing a contact lens Method of manufacturing a contact lens

1984-10-23

1986-10-28

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51216LP, B24B 100

Patent

active

046190821

ABSTRACT:
A contact lens is manufactured by a method involving machining a first face (2,3) and a reference surface (4) on a blank (1); mounting the blank (1) in a work holder (10) adapted for accurate mounting on a lathe such that the blank (1) is held with its first face (2,3) accurately positioned relative to a datum point on the lathe; and machining a second face (8) on the blank (1). Such method avoids the need for skilled operatives and enables easy manufacture of accurately dimensioned contact lenses.

REFERENCES:
patent: 1911153 (1933-05-01), Hill
patent: 3030859 (1962-04-01), Elliot, Jr.
patent: 3064531 (1962-11-01), Bullock
patent: 3100955 (1963-08-01), Kratt
patent: 3662040 (1972-05-01), Urbach et al.

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